Cannister



FIG. 1 is an upper perspective view of a cannister, showing our new design;

FIG. 2 is a lower perspective view thereof;

FIG. 3 is a front elevational view thereof, the back elevational view being identical;

FIG. 4 is a left elevational view thereof, the right elevational view being identical;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines in the drawings depict portions of the cannister that form no part of the claimed design. 

CLAIM We claim the ornamental design for a cannister, as shown and described. 